/* =========================================
   ligaoxing.club v1
   品牌规范 4 色：白 / 米白 / 品牌橙 / 深炭灰
   群星闪耀板块独立蓝橙白
   布局：极窄列居中 + 大留白（参考 12club）
   ========================================= */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #FFFFFF;
  --bg-cream: #FDF8F0;
  --orange: #E8620A;
  --orange-dark: #C45209;
  --text: #2C2C2C;
  --text-muted: #555555;
  --text-dim: #999999;
  --line: #E8E4DC;

  /* 群星闪耀独立 */
  --qx-blue: #4293D4;
  --qx-orange: #E37C31;
  --qx-cream: #FDF8F0;

  --radius: 12px;
  --maxw: 720px;
}

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
               -apple-system, BlinkMacSystemFont, "Segoe UI",
               "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  font-size: 16px;
}

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 80px 0; }

/* =================== HERO =================== */
.hero {
  min-height: 92vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--bg);
  padding: 40px 24px;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 30%, rgba(232,98,10,0.05) 0%, transparent 60%);
  pointer-events: none;
}

.hero-avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  margin: 0 auto 24px;
  display: block;
  object-fit: cover;
  border: 4px solid #fff;
  box-shadow: 0 8px 32px rgba(232,98,10,0.18), 0 0 0 1px rgba(0,0,0,0.04);
}

.hero-name {
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--text);
  margin-bottom: 12px;
}

.hero-slogan {
  font-size: clamp(1.05rem, 3vw, 1.4rem);
  font-weight: 500;
  color: var(--orange);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}

.hero-sub {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* =================== BUTTONS =================== */
.btn {
  display: inline-block;
  padding: 12px 32px;
  border-radius: 8px;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all 0.25s ease;
  border: 1.5px solid transparent;
}

.btn-primary {
  background: var(--orange);
  color: #fff;
}
.btn-primary:hover {
  background: var(--orange-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(232,98,10,0.18);
}

.btn-outline {
  border-color: var(--orange);
  color: var(--orange);
  background: transparent;
}
.btn-outline:hover {
  background: rgba(232,98,10,0.08);
}

.btn-qunxing {
  background: var(--qx-blue);
  color: #fff;
}
.btn-qunxing:hover {
  background: #3580bd;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(66,147,212,0.20);
}

.btn-block {
  display: block;
  width: 100%;
  text-align: center;
  margin-top: 24px;
}

/* =================== SECTION TITLE =================== */
.section-title {
  font-size: clamp(1.4rem, 4vw, 1.8rem);
  font-weight: 700;
  color: var(--text);
  text-align: center;
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.section-title::after {
  content: '';
  display: block;
  width: 40px;
  height: 3px;
  background: var(--orange);
  margin: 14px auto 0;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 48px;
  font-size: 0.95rem;
}

/* =================== ABOUT =================== */
.about {
  background: var(--bg-cream);
}

.about-text {
  max-width: 640px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 1.02rem;
}

.about-text p {
  margin-bottom: 18px;
}

.about-bullet {
  list-style: none;
  margin: 0 0 18px;
  padding: 0;
}
.about-bullet li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 10px;
  color: var(--text-muted);
}
.about-bullet li::before {
  content: '·';
  position: absolute;
  left: 6px;
  top: -4px;
  color: var(--orange);
  font-size: 1.6rem;
  font-weight: 700;
}

.product-price-note {
  font-size: 0.82rem;
  color: var(--text-dim);
  margin-top: 6px;
}

.about-text strong {
  color: var(--text);
  font-weight: 600;
}

.about-list {
  list-style: none;
  margin: 18px 0;
  padding: 0;
  counter-reset: about;
}
.about-list li {
  counter-increment: about;
  position: relative;
  padding-left: 38px;
  margin-bottom: 14px;
}
.about-list li::before {
  content: counter(about);
  position: absolute;
  left: 0;
  top: 2px;
  width: 26px;
  height: 26px;
  background: var(--orange);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.about-tail {
  margin-top: 28px;
  padding: 18px 22px;
  background: #fff;
  border-left: 3px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--text);
  font-weight: 500;
}
.about-link {
  margin-top: 24px;
  text-align: center;
}
.about-link a {
  color: var(--orange);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  border-bottom: 1.5px solid var(--orange);
  padding-bottom: 2px;
  transition: opacity 0.2s;
}
.about-link a:hover {
  opacity: 0.7;
}

/* =================== DATA =================== */
.data {
  background: var(--bg);
}

.data-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 720px;
  margin: 0 auto;
}

.data-cell {
  background: var(--bg-cream);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: transform 0.2s;
}
.data-cell:hover {
  transform: translateY(-2px);
}

.data-num {
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  font-weight: 700;
  color: var(--orange);
  line-height: 1.1;
  margin-bottom: 8px;
}

.data-unit {
  font-size: 0.65em;
  font-weight: 500;
  color: var(--text-muted);
  margin-left: 2px;
}

.data-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.data-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-dim);
  margin-top: 32px;
  font-style: italic;
}

@media (max-width: 600px) {
  .data-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =================== DATA CLUSTERS =================== */
.data-cluster {
  max-width: 720px;
  margin: 0 auto 28px;
}
.data-cluster-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin: 0 0 14px;
  padding-left: 4px;
}

/* =================== PRODUCT GROUPS =================== */
.product-group-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin: 32px 0 16px;
  padding-left: 4px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.product-group-title:first-of-type {
  margin-top: 0;
}

/* =================== PRODUCTS =================== */
.products {
  background: var(--bg-cream);
}

.product-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px 28px;
  margin-bottom: 24px;
  border: 1px solid var(--line);
  transition: all 0.25s;
}
.product-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}

.product-tag {
  display: inline-block;
  background: rgba(232,98,10,0.08);
  color: var(--orange);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-bottom: 14px;
}

.product-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
}

.product-tagline {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 18px;
}

.product-features {
  list-style: none;
  padding: 0;
  margin: 16px 0;
}
.product-features li {
  position: relative;
  padding-left: 22px;
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 8px;
}
.product-features li::before {
  content: '·';
  position: absolute;
  left: 6px;
  top: -2px;
  color: var(--orange);
  font-size: 1.4rem;
  font-weight: 700;
}

.product-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin: 20px 0 0;
  padding-top: 20px;
  border-top: 1px dashed var(--line);
}
.price-num {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--orange);
}
.price-unit {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* 群星闪耀独立配色 */
.product-qunxing {
  background: var(--qx-cream);
  border-color: var(--qx-blue);
}
.product-qunxing .product-tag {
  background: rgba(66,147,212,0.10);
  color: var(--qx-blue);
}
.product-qunxing .price-num {
  color: var(--qx-blue);
}
.product-qunxing .product-features li::before {
  color: var(--qx-orange);
}
.product-qunxing .product-price {
  border-color: rgba(66,147,212,0.25);
}

/* =================== FIT / FAQ =================== */
.fitness {
  background: var(--bg);
}
.fit-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  max-width: 720px;
  margin: 0 auto;
}
.fit-col {
  padding: 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.fit-col h3 {
  font-size: 1.1rem;
  margin-bottom: 16px;
  font-weight: 700;
}
.fit-yes { background: rgba(232,98,10,0.04); }
.fit-yes h3 { color: var(--orange); }
.fit-no { background: #f8f8f8; }
.fit-no h3 { color: var(--text-muted); }
.fit-col ul {
  list-style: none;
  padding: 0;
}
.fit-col ul li {
  padding: 6px 0;
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

@media (max-width: 600px) {
  .fit-grid { grid-template-columns: 1fr; }
}

.faq {
  background: var(--bg-cream);
}
.faq-list {
  max-width: 720px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border-radius: var(--radius);
  margin-bottom: 12px;
  border: 1px solid var(--line);
  overflow: hidden;
  transition: all 0.2s;
}
.faq-item summary {
  padding: 18px 22px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  position: relative;
  padding-right: 50px;
}
.faq-item summary::-webkit-details-marker {
  display: none;
}
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--orange);
  font-size: 1.4rem;
  font-weight: 400;
  transition: transform 0.2s;
}
.faq-item[open] summary::after {
  content: '−';
}
.faq-item p {
  padding: 0 22px 20px;
  color: var(--text-muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

/* =================== WECHAT =================== */
.wechat {
  background: var(--bg);
  text-align: center;
}

.wechat-qr-block {
  text-align: center;
  margin-top: 12px;
}

.wechat-qr {
  width: 220px;
  height: 220px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 12px;
  background: #fff;
  object-fit: contain;
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}

.wechat-qr-note {
  margin-top: 14px;
  color: var(--text-muted);
  font-size: 0.88rem;
  letter-spacing: 0.05em;
}

/* =================== CONTACT =================== */
.contact {
  background: var(--bg-cream);
  text-align: center;
}

.contact-text {
  max-width: 540px;
  margin: 0 auto 32px;
  color: var(--text-muted);
}

.contact-block {
  display: flex;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}

.contact-item {
  text-align: center;
}

.contact-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.contact-value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

/* =================== FOOTER =================== */
.footer {
  padding: 32px 24px;
  border-top: 1px solid var(--line);
  text-align: center;
  background: var(--bg);
}

.footer p {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-bottom: 4px;
}

.footer-sub {
  font-size: 0.78rem !important;
}

/* =================== DEEPME 子页 =================== */
.deepme-hero {
  text-align: center;
  padding: 80px 24px 60px;
  background: var(--bg);
}
.dm-tag {
  display: inline-block;
  background: rgba(232,98,10,0.08);
  color: var(--orange);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 18px;
}
.dm-title {
  font-size: clamp(2.4rem, 6vw, 3.4rem);
  font-weight: 700;
  margin-bottom: 8px;
}
.dm-slogan {
  font-size: clamp(1.1rem, 3.5vw, 1.6rem);
  color: var(--orange);
  font-weight: 600;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}
.dm-sub {
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 32px;
  line-height: 1.8;
}
.dm-mbti {
  margin-top: 32px;
  font-size: 0.9rem;
  color: var(--text-dim);
  font-style: italic;
}
.dm-mbti strong {
  color: var(--orange);
}
.dm-products {
  background: var(--bg-cream);
}
.dm-line {
  display: flex;
  gap: 24px;
  background: #fff;
  padding: 28px 24px;
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid var(--line);
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}
.dm-line-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--orange);
  min-width: 48px;
  letter-spacing: 0.05em;
}
.dm-line-body h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 8px;
}
.dm-line-tag {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 14px;
  line-height: 1.7;
}
.dm-line-features {
  list-style: none;
  padding: 0;
}
.dm-line-features li {
  padding: 4px 0 4px 16px;
  position: relative;
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.dm-line-features li::before {
  content: '·';
  position: absolute;
  left: 4px;
  top: -2px;
  color: var(--orange);
  font-weight: 700;
  font-size: 1.3rem;
}
.dm-how {
  background: var(--bg);
}
.dm-step-list {
  max-width: 580px;
  margin: 0 auto;
  list-style: none;
  padding: 0;
  counter-reset: dmstep;
}
.dm-step-list li {
  counter-increment: dmstep;
  padding: 16px 0 16px 60px;
  position: relative;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  line-height: 1.7;
}
.dm-step-list li::before {
  content: counter(dmstep);
  position: absolute;
  left: 0;
  top: 16px;
  width: 38px;
  height: 38px;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.95rem;
}
.dm-step-list li:last-child {
  border-bottom: none;
}
.dm-pricing {
  background: var(--bg-cream);
}
.dm-price-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  max-width: 760px;
  margin: 0 auto;
}
.dm-price-card {
  background: #fff;
  padding: 28px 22px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  text-align: center;
  position: relative;
}
.dm-price-card-mid {
  border-color: var(--orange);
  border-width: 2px;
  transform: translateY(-8px);
}
.dm-price-tag {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--orange);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 999px;
  letter-spacing: 0.1em;
}
.dm-price-name {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 8px;
}
.dm-price-num {
  font-size: 2rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 4px;
}
.dm-price-cond {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-bottom: 18px;
}
.dm-price-card ul {
  list-style: none;
  padding: 0;
  text-align: left;
}
.dm-price-card ul li {
  padding: 6px 0 6px 14px;
  position: relative;
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.dm-price-card ul li::before {
  content: '·';
  position: absolute;
  left: 2px;
  top: -2px;
  color: var(--orange);
  font-size: 1.2rem;
  font-weight: 700;
}
.dm-quote {
  background: var(--bg);
  text-align: center;
  padding: 80px 24px;
}
.dm-quote-text {
  font-size: clamp(1.2rem, 3.5vw, 1.6rem);
  font-weight: 500;
  color: var(--text);
  max-width: 640px;
  margin: 0 auto 16px;
  line-height: 1.7;
  font-style: italic;
}
.dm-quote-by {
  color: var(--text-dim);
  font-size: 0.85rem;
}

@media (max-width: 600px) {
  .dm-line { flex-direction: column; gap: 12px; }
  .dm-price-grid { grid-template-columns: 1fr; }
  .dm-price-card-mid { transform: none; }
}

/* =================== STORY (about.html) =================== */
.story {
  background: var(--bg);
  padding: 60px 0 100px;
}
.story-eyebrow {
  text-align: center;
  font-size: 0.85rem;
  color: var(--orange);
  letter-spacing: 0.2em;
  font-weight: 700;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.story-title {
  text-align: center;
  font-size: clamp(2rem, 6vw, 3rem);
  font-weight: 700;
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}
.story-lead {
  text-align: center;
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 540px;
  margin: 0 auto 60px;
  line-height: 1.8;
  font-style: italic;
}
.story h2 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 56px 0 18px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--orange);
  display: inline-block;
  color: var(--text);
  line-height: 1.5;
}
.story p {
  color: var(--text);
  font-size: 1rem;
  line-height: 2;
  margin-bottom: 18px;
}
.story p strong {
  color: var(--text);
  background: linear-gradient(transparent 60%, rgba(232,98,10,0.18) 60%);
  padding: 0 2px;
}
.story-list {
  list-style: none;
  padding: 0;
  margin: 18px 0;
}
.story-list li {
  position: relative;
  padding: 8px 0 8px 22px;
  color: var(--text-muted);
  line-height: 1.8;
}
.story-list li::before {
  content: '·';
  position: absolute;
  left: 6px;
  top: -4px;
  color: var(--orange);
  font-size: 1.6rem;
  font-weight: 700;
}
.story-emphasis {
  margin: 32px auto !important;
  padding: 24px 28px;
  background: var(--bg-cream);
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 1.05rem;
  font-weight: 600;
  text-align: center;
  font-style: italic;
}
.story-sign {
  margin-top: 56px !important;
  text-align: right;
  color: var(--text-muted);
  font-style: italic;
  line-height: 2.2 !important;
}
.story-video-placeholder {
  margin-top: 60px;
  padding: 48px 24px;
  background: var(--bg-cream);
  border: 2px dashed var(--line);
  border-radius: var(--radius);
  text-align: center;
  color: var(--text-dim);
  font-size: 0.9rem;
}

/* =================== JOIN 子页（4 产品） =================== */
.join-hero {
  text-align: center;
  padding: 60px 24px 40px;
  background: var(--bg-cream);
}
.join-hero-qunxing {
  background: var(--qx-cream);
}
.join-tag {
  display: inline-block;
  background: rgba(232,98,10,0.08);
  color: var(--orange);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
  margin-bottom: 18px;
}
.join-hero-qunxing .join-tag {
  background: rgba(66,147,212,0.10);
  color: var(--qx-blue);
}
.join-title {
  font-size: clamp(2rem, 5.5vw, 2.8rem);
  font-weight: 700;
  margin-bottom: 8px;
}
.join-slogan {
  font-size: clamp(1rem, 3vw, 1.2rem);
  color: var(--text-muted);
  margin-bottom: 24px;
}
.join-price-block {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 6px;
  margin: 16px 0;
}
.join-price {
  font-size: 2.4rem;
  font-weight: 700;
  color: var(--orange);
}
.join-price-unit {
  color: var(--text-muted);
  font-size: 1rem;
}
.join-pricetable {
  background: #fff;
  border-radius: var(--radius);
  padding: 8px 0;
  margin: 20px auto;
  max-width: 360px;
  border: 1px solid var(--line);
}
.join-pricetable-row {
  display: flex;
  justify-content: space-between;
  padding: 12px 20px;
  font-size: 0.95rem;
}
.join-pricetable-row + .join-pricetable-row {
  border-top: 1px dashed var(--line);
}
.qx-price {
  font-weight: 700;
  color: var(--qx-blue);
}
.join-meta {
  color: var(--text-dim);
  font-size: 0.85rem;
  font-style: italic;
}

.bonus-card {
  background: rgba(232,98,10,0.06);
  border: 1.5px dashed var(--orange);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 24px auto 0;
  max-width: 420px;
}
.bonus-tag {
  display: inline-block;
  font-size: 0.78rem;
  color: var(--orange);
  font-weight: 700;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}
.bonus-text {
  font-size: 0.92rem;
  color: var(--text);
  margin-bottom: 12px;
  line-height: 1.6;
}
.bonus-text strong {
  color: var(--orange);
  font-weight: 700;
}
.bonus-options {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}
.bonus-opt {
  flex: 1;
  min-width: 140px;
  padding: 10px 14px;
  background: #fff;
  border-radius: 8px;
  text-align: center;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  border: 1px solid var(--line);
}

.join-pay {
  background: var(--bg);
  padding: 60px 0 30px;
}
.join-h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--orange);
  display: inline-block;
}
.join-h2:first-child {
  margin-top: 0;
}
.join-steps {
  list-style: none;
  padding: 0;
  margin: 0 0 32px;
  counter-reset: jstep;
}
.join-steps li {
  counter-increment: jstep;
  padding: 14px 0 14px 50px;
  position: relative;
  border-bottom: 1px solid var(--line);
  color: var(--text-muted);
  line-height: 1.6;
}
.join-steps li::before {
  content: counter(jstep);
  position: absolute;
  left: 0;
  top: 14px;
  width: 32px;
  height: 32px;
  background: var(--orange);
  color: #fff;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
}
.join-steps li:last-child { border-bottom: none; }

.qr-pay-block {
  background: var(--bg-cream);
  border-radius: var(--radius);
  padding: 28px 24px;
  text-align: center;
  margin: 24px 0;
  border: 1px solid var(--line);
}
.qr-pay-title {
  font-size: 0.85rem;
  color: var(--text-muted);
  letter-spacing: 0.1em;
  margin-bottom: 16px;
}
.qr-pay-img {
  display: flex;
  justify-content: center;
  margin-bottom: 16px;
}
.qr-pay-img img {
  width: 220px;
  height: 220px;
  border-radius: 8px;
  background: #fff;
  padding: 12px;
  object-fit: contain;
}
.qr-placeholder {
  width: 220px;
  height: 220px;
  background: #fff;
  border: 2px dashed var(--line);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  color: var(--text-dim);
  font-size: 0.85rem;
  text-align: center;
  line-height: 1.6;
}
.qr-pay-amount {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--orange);
  margin-bottom: 4px;
}
.qr-pay-note {
  font-size: 0.82rem;
  color: var(--text-dim);
}

.usdt-block {
  background: var(--qx-cream);
  border-radius: var(--radius);
  padding: 24px;
  margin: 24px 0;
  border: 1px solid rgba(66,147,212,0.25);
}
.usdt-title {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--qx-blue);
  margin-bottom: 14px;
  letter-spacing: 0.05em;
}
.usdt-row {
  padding: 10px 0;
  border-bottom: 1px dashed rgba(66,147,212,0.25);
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.usdt-row:last-child { border-bottom: none; }
.usdt-chain {
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--qx-blue);
  letter-spacing: 0.05em;
}
.usdt-addr {
  font-family: 'SF Mono', Monaco, Consolas, monospace;
  font-size: 0.78rem;
  color: var(--text);
  word-break: break-all;
  background: #fff;
  padding: 6px 10px;
  border-radius: 4px;
  display: block;
}
.usdt-warning {
  margin-top: 12px;
  font-size: 0.78rem;
  color: #d24545;
  font-weight: 500;
}

.radio-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
@media (max-width: 600px) {
  .radio-grid-3 { grid-template-columns: 1fr; }
}

.join-form-section {
  background: var(--bg-cream);
  padding: 50px 0 80px;
}

/* =================== TOPNAV (子页) =================== */
.topnav {
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  padding: 14px 0;
  position: sticky;
  top: 0;
  z-index: 10;
}
.topnav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.topnav-logo {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
  font-size: 1.05rem;
}
.topnav-back {
  color: var(--orange);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
}

/* =================== SIGNUP =================== */
.container-narrow {
  max-width: 580px;
}
.signup-hero {
  padding: 60px 0 24px;
  text-align: center;
  background: var(--bg-cream);
}
.signup-title {
  font-size: clamp(1.8rem, 5vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 12px;
}
.signup-sub {
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto;
  font-size: 0.95rem;
}
.signup-form-section {
  background: var(--bg-cream);
  padding: 24px 0 80px;
}
.signup-form {
  background: #fff;
  padding: 32px 28px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.form-group {
  margin-bottom: 24px;
}
.form-label {
  display: block;
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 10px;
  color: var(--text);
}
.form-label.required::after {
  content: ' *';
  color: var(--orange);
}
.form-hint {
  font-size: 0.78rem;
  color: var(--text-dim);
  margin-top: 4px;
}
.signup-form input[type="text"],
.signup-form select,
.signup-form textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  transition: border-color 0.2s;
}
.signup-form input:focus,
.signup-form select:focus,
.signup-form textarea:focus {
  outline: none;
  border-color: var(--orange);
}
.signup-form textarea {
  resize: vertical;
  line-height: 1.6;
}
.radio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}
.radio-card {
  display: block;
  padding: 14px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.18s;
  position: relative;
}
.radio-card:hover {
  border-color: var(--orange);
}
.radio-card input[type="radio"] {
  position: absolute;
  opacity: 0;
}
.radio-card input[type="radio"]:checked ~ .radio-content {
  color: var(--orange);
}
.radio-card:has(input:checked) {
  border-color: var(--orange);
  background: rgba(232,98,10,0.04);
}
.radio-card-qunxing:has(input:checked) {
  border-color: var(--qx-blue);
  background: rgba(66,147,212,0.06);
}
.radio-card-qunxing:has(input:checked) .radio-content {
  color: var(--qx-blue);
}
.radio-name {
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 4px;
  color: var(--text);
}
.radio-price {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--orange);
  margin-bottom: 4px;
}
.radio-card-qunxing .radio-price {
  color: var(--qx-blue);
}
.radio-note {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}
.btn-lg {
  padding: 16px 32px;
  font-size: 1rem;
  margin-top: 8px;
}
.form-disclaimer {
  text-align: center;
  margin-top: 20px;
  font-size: 0.82rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.success-card,
.error-card {
  background: #fff;
  padding: 48px 32px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  text-align: center;
}
.success-card {
  border-top: 4px solid var(--orange);
}
.error-card {
  border-top: 4px solid #d24545;
}
.success-icon {
  font-size: 56px;
  margin-bottom: 16px;
}
.success-card h2,
.error-card h3 {
  margin-bottom: 16px;
  font-weight: 700;
}
.success-card p,
.error-card p {
  color: var(--text-muted);
  margin-bottom: 12px;
  line-height: 1.7;
}
.success-card .btn,
.error-card .btn {
  margin-top: 16px;
}

.success-qr {
  display: flex;
  justify-content: center;
  margin: 18px 0 8px;
}
.success-qr img {
  width: 200px;
  height: 200px;
  border-radius: 8px;
  border: 1px solid var(--line);
  padding: 8px;
  background: #fff;
  object-fit: contain;
}
.success-qr-note {
  font-size: 0.82rem !important;
  color: var(--text-dim) !important;
  margin-bottom: 12px !important;
}

.contact-qr-block {
  text-align: center;
  margin: 0 auto 36px;
}
.contact-qr {
  width: 220px;
  height: 220px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  padding: 12px;
  background: #fff;
  object-fit: contain;
  box-shadow: 0 8px 32px rgba(0,0,0,0.06);
}
.contact-qr-note {
  margin-top: 12px;
  color: var(--text-muted);
  font-size: 0.88rem;
}
.error-detail {
  font-size: 0.8rem !important;
  color: var(--text-dim) !important;
}

@media (max-width: 600px) {
  .radio-grid { grid-template-columns: 1fr; }
}

/* =================== RESPONSIVE =================== */
@media (max-width: 600px) {
  section { padding: 60px 0; }
  .container { padding: 0 20px; }
  .hero { min-height: 88vh; }
  .product-card { padding: 24px 20px; }
  .contact-block { gap: 24px; }
}